Shelby County Power Outage History
2014–2025 · Indiana
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 16, 2021 | 1 hrs | 6,323 (23%) | Unnamed event |
| May 18, 2020 | 7 hrs | 2,710 (10%) | Unnamed event |
| Jun 18, 2025 | 24 hrs | 2,586 (10%) | Thunderstorm Wind |
| May 20, 2023 | 2 hrs | 2,309 (9%) | Unnamed event |
| Apr 21, 2021 | 9 hrs | 2,265 (8%) | Unnamed event |
Over the 12 years from 2014 to 2025, Shelby County recorded 317 distinct power outage events, averaging 2.9 hours per event.
The single worst outage on record in Shelby County started April 16, 2021, lasting 1 hours and leaving up to 6,323 customers without power (23% of the county) at its peak.
December has historically been the worst month for outages in Shelby County, with 40 events recorded during that month across the dataset.
Based on this history, Shelby County earns a Reliability Grade of A, placing it in the 82nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Shelby County's outage profile
See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.
Outage-prep kit
See our outage-prep guides.
Similar counties in Indiana
Counties with the closest reliability grade and national percentile to Shelby County.
| County | Grade | National percentile |
|---|---|---|
| Noble County | A | 82nd |
| Wabash County | A | 83rd |
| Decatur County | A | 84th |
| Montgomery County | A | 84th |
| Johnson County | A | 81st |
FAQ
How often does power go out in Shelby County?
Between 2014 and 2025, Shelby County recorded 317 outage events, averaging 2.9 hours each.
What is Shelby County's reliability grade?
Shelby County has a Reliability Grade of A, in the 82nd national percentile.
What was the worst power outage in Shelby County?
The worst outage on record started April 16, 2021, lasting 1 hours and affecting up to 6,323 customers.